Index: head/archivers/thunar-archive-plugin/Makefile
===================================================================
--- head/archivers/thunar-archive-plugin/Makefile	(revision 513659)
+++ head/archivers/thunar-archive-plugin/Makefile	(revision 513660)
@@ -1,30 +1,31 @@
 # Created by: ports@c0decafe.net <ports@c0decafe.net>
 # $FreeBSD$
 
 PORTNAME=	thunar-archive-plugin
 PORTVERSION=	0.4.0
 CATEGORIES=	archivers xfce
 MASTER_SITES=	XFCE/thunar-plugins
 DIST_SUBDIR=	xfce4
 
 MAINTAINER=	xfce@FreeBSD.org
 COMMENT=	Archive plugin for the Thunar File Manager
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-USES=		gettext-tools gmake gnome libtool pkgconfig tar:bzip2 xfce
+USES=		compiler:c11 gettext-tools gmake gnome libtool pkgconfig \
+		tar:bzip2 xfce
 USE_GNOME=	cairo gtk30 intltool
 USE_XFCE=	libexo thunar
 
 GNU_CONFIGURE=	yes
 INSTALLS_ICONS=	yes
 INSTALL_TARGET=	install-strip
 
 OPTIONS_DEFINE=		NLS
 OPTIONS_SUB=		yes
 
 NLS_CONFIGURE_ENABLE=	nls
 NLS_USES=		gettext-runtime
 
 .include <bsd.port.mk>
Index: head/sysutils/ffs2recov/Makefile
===================================================================
--- head/sysutils/ffs2recov/Makefile	(revision 513659)
+++ head/sysutils/ffs2recov/Makefile	(revision 513660)
@@ -1,24 +1,24 @@
 # Created by: sten@blinkenlights.nl
 # $FreeBSD$
 
 PORTNAME=	ffs2recov
 PORTVERSION=	1.0
 PORTREVISION=	1
 CATEGORIES=	sysutils
 MASTER_SITES=	http://BSDforge.com/projects/source/sysutils/ffs2recov/
 
 MAINTAINER=	portmaster@bsdforge.com
 COMMENT=	Utility to recover UFS2 filesystems
 
 LICENSE=	BSD2CLAUSE
 
-USES=		tar:bzip2 uidfix
+USES=		compiler:c11 tar:bzip2 uidfix
 WRKSRC=		${WRKDIR}/${PORTNAME}
 
 PLIST_FILES=	sbin/ffs2recov \
 		man/man8/ffs2recov.8.gz
 
 MAKE_ENV=	BINDIR=${PREFIX}/sbin MANDIR=${MANPREFIX}/man/man \
 		WARNS=0
 
 .include <bsd.port.mk>
Index: head/sysutils/xfce4-wavelan-plugin/Makefile
===================================================================
--- head/sysutils/xfce4-wavelan-plugin/Makefile	(revision 513659)
+++ head/sysutils/xfce4-wavelan-plugin/Makefile	(revision 513660)
@@ -1,28 +1,29 @@
 # Created by: Manuel Rabade Garica <mig@mig-29.net>
 # $FreeBSD$
 
 PORTNAME=	xfce4-wavelan-plugin
 PORTVERSION=	0.6.1
 CATEGORIES=	sysutils xfce
 MASTER_SITES=	XFCE/panel-plugins
 DIST_SUBDIR=	xfce4
 
 MAINTAINER=	xfce@FreeBSD.org
 COMMENT=	Displays various information about a WaveLAN device
 
 LICENSE=	BSD3CLAUSE
 
-USES=		gettext-tools gmake gnome libtool pkgconfig tar:bzip2 xfce
+USES=		compiler:c11 gettext-tools gmake gnome libtool pkgconfig \
+		tar:bzip2 xfce
 USE_GNOME=	cairo gdkpixbuf2 gtk30 glib20 intltool
 USE_XFCE=	panel
 
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 
 OPTIONS_DEFINE=		NLS
 OPTIONS_SUB=		yes
 
 NLS_CONFIGURE_ENABLE=	nls
 NLS_USES=		gettext-runtime
 
 .include <bsd.port.mk>